Electric double-layer capacitor and capacitor device

摘要

An electric double-layer capacitor has an elongate separator impregnated with an electrolytic solution and folded alternately in different directions into folded layers of a predetermined length, and a plurality of stacked electrode plates each disposed between adjacent two of the folded layers of the separator. The electrode plates have opposite polarities confronting each other through the folded layers of the separator. A plurality of flexible collectors are connected to respective ends of the electrode plates and extend from between the folded layers of the separator. The flexible collectors of each of the polarities are bundled in a direction parallel to the electrode plates on one side of the electrode plates and disposed at an outermost layer of the electrode plates with respect to a direction in which the electrode plates are stacked.